Glass A has scissors.
Glass B has a paperclip.
Glass C has an eraser.
Glass D has a watch.
Most people rush to answer based on what they SEE. But here’s the trick — this isn’t about what looks fuller… it’s about understanding how space works.
When you place an object inside water, it pushes the water up. The bigger the object, the more water it displaces. That means the water level rises — even though there may actually be LESS water inside the glass.
So if a glass contains a large object, it might look “fuller,” but in reality, part of that space is taken by the object, not water.
Now think carefully…
Which object takes up the LEAST space?
The smaller the object, the more actual water remains inside the glass.
Most people get this wrong because they focus on the water level instead of the volume taken by the object.
Take your time… look again… don’t rush it.
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Answer:
Glass B has the most water in it — because the paperclip takes up the least space.